<template>
    <div>
        <div class="search">
            <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
        </div>
        <div class="search-content" v-show="keyword" ref="search">
             
            <ul>
                <li v-for="item in list" :key="item.id" class="item-search  border-bottom" @click="handleCityClick(item.name)">
                    {{item.name}}
                </li>
                <li class="item-search" v-show="!list.length">
                    没有找到匹配数据
                </li>
            </ul>
        </div>
    </div>
</template>

<script>
    import Bscroll from 'better-scroll'
     import { mapState, mapMutations } from 'vuex'
    export default {
        name:'CitySearch',
        props:{
            cities:Object
        },
        data(){
            return{
                list:[],
                keyword:'',
                timer:null
            }
        },
        methods:{
             handleCityClick(city){
                 this.changeCity(city)
                 this.$router.push('/')
            },
             ...mapMutations(['changeCity'])
        },
        mounted(){
            console.log(this.cities);
        },
        // computed:{
        //     lists(){
        //         const result=[];
        //         for(let i in this.cities){
        //             this.cities[i].forEach((value)=> {
        //                 if(value.spell.indexOf(this.keyword)>-1 || value.name.indexOf(this.keyword)>-1){
        //                     result.push(value);
        //                 }
        //             })
        //         }
        //         return result
        //     }
        // },

        watch:{
            keyword(){
                if(this.timer){
                    clearTimeout(this.timer);
                }
                if(!this.keyword){
                    this.list="";
                    return
                }
                this.timer=setTimeout(()=>{
                    const result=[];
                    for(let i in this.cities){
                        this.cities[i].forEach((value)=> {
                            if(value.spell.indexOf(this.keyword)>-1 || value.name.indexOf(this.keyword)>-1){
                                result.push(value);
                            }
                        })
                    }
                    this.list=result;
                },100)
            }
        },
        mounted(){
            this.scroll=new Bscroll(this.$refs.search,{
                 click: true
            })
        }
    }
</script>

<style scoped lang="scss">
    @import '~styles/varibles.scss';
    .search{
        height:0.72rem;
        padding:0 0.1rem;
        background:$bgColor;
        .search-input{
            box-sizing:border-box;
            padding:0 0.2rem;
            width:100%;
            height:0.62rem;
            line-height:0.62rem;
            text-align:center;
        }
    }
    .search-content{
        overflow:hidden;
        position:absolute;
        z-index:1;
        top:1.58rem;
        left:0;
        right:0;
        bottom:0;
        background:#eee;
        .item-search{
            line-height: .62rem;
            padding-left: .2rem;
            background: #fff;
            color: #666;
        }
    }
</style>